12461515 has 16 divisors (see below), whose sum is σ = 17024256. Its totient is φ = 8668000.

The previous prime is 12461509. The next prime is 12461543. The reversal of 12461515 is 51516421.

It is a happy number.

It is not a de Polignac number, because 12461515 - 2⁵ = 12461483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12461515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3661 + ... + 6190.

It is an arithmetic number, because the mean of its divisors is an integer number (1064016).

Almost surely, 2^12461515 is an apocalyptic number.

12461515 is a deficient number, since it is larger than the sum of its proper divisors (4562741).

12461515 is a wasteful number, since it uses less digits than its factorization.

12461515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890.

The product of its digits is 1200, while the sum is 25.

The square root of 12461515 is about 3530.0871094068. The cubic root of 12461515 is about 231.8410214352.

Adding to 12461515 its reverse (51516421), we get a palindrome (63977936).

The spelling of 12461515 in words is "twelve million, four hundred sixty-one thousand, five hundred fifteen".